L-25J 비료 살포기 기어박스 (1:3 비율) - 코머 L-25J 기어박스 교체용

The L-25J Fertilizer Spreader Gearbox Ratio 1:3 Replacement for Comer L-25J Gearbox, also known as a fertilizer distributor gearbox, is an essential component of agricultural machinery specifically engineered for soil preparation, crop treatment, and fertilizer spreading tasks. Centrally positioned within the spreading unit, it efficiently transmits power from the tractor's power take-off (PTO) shaft to the spinning discs or augers that evenly distribute fertilizer, lime, seed, or granular materials across cultivated land. Designed to handle demanding fieldwork conditions, this agricultural gearbox features a rugged aluminium housing that is both lightweight and corrosion-resistant, delivering outstanding durability with a total weight of just 4.1 kg. Its 1:3 step-up ratio converts tractor PTO speed into the higher rotational velocity required for efficient and uniform spreading, making it one of the most practical fertilizer spreader gearboxes available for modern farming operations.

Rated at a maximum input power of 5 kW and a maximum input rotation speed of 540 r/min, this gearbox for fertilizer spreader applications is engineered with a series of precision-machined gears and shafts that optimise rotational speed and output torque to meet diverse spreading requirements. With a max output torque of 30 N·m and compatibility with standard 1-3/8 inch 6-spline PTO connections, it offers seamless integration into a wide variety of tractor-mounted spreaders. Beyond fertilizer distribution, its robust design makes it equally suitable for mowers, multi-row rotary tillers, band saws, and various other agricultural implement applications. The gearbox is supplied dry (without oil), using SAE 90EP gear oil with a maximum capacity of 0.35 L, and features a scheduled oil-change interval of 500 hours, or at least once annually, ensuring low-maintenance operation and long service life across intensive seasonal use.

기술적 매개변수

당사는 SGS/TÜV Rheinland의 지원을 받아 제3자 공급업체 심사 및 기업 검증을 완료했습니다. 이 검증을 통해 구매자는 회사 정보, 사업 운영, 공급업체 프로필 및 전반적인 제조 역량을 확인할 수 있습니다. 주문 요구 사항에 따라 제품별 검사 보고서, 자재 문서 또는 규정 준수 기록을 제공할 수 있습니다.

최소 주문 수량(MOQ): 제품 유형 및 주문 수량에 따라 유연하게 설정됩니다.

샘플: 신규 고객은 적절한 상황에 따라 1~5개의 샘플을 요청할 수 있습니다.

혼합 주문: 서로 다른 모델을 조합하는 것이 가능하며, 총 주문량은 약 $1,500 이상이어야 합니다.

소량 주문: 1~2개부터 주문 가능하지만, 단가가 상대적으로 높아질 수 있습니다.

소요 기간: 표준 부품은 10~25영업일, 맞춤형 부품은 20~45영업일, 프로젝트 기반 장비는 45~120영업일이 소요됩니다.

거래 조건: 일반적으로 EXW, FOB, CIF 및 DAP 조건이 지원되며, FCA, CFR, CPT, CIP 및 DDP 조건은 별도로 협상할 수 있습니다.

L-25J 비료 살포기 기어박스 치수

Key Features of the L-25J Fertilizer Spreader Gearbox 1:3

1. PTO 인터페이스 및 스플라인 호환성
The L-25J input shaft is machined to match the standard 1-3/8 inch 6-spline (Z6) tractor PTO interface, the most widely used connection in global agricultural machinery. This precise spline compatibility prevents vibration, eliminates misalignment risk, and significantly reduces wear on both the gearbox and the connecting PTO driveline shaft. The result is smooth, consistent power delivery from the tractor to the spreading mechanism throughout the entire operational cycle.

2. Optimised 1:3 Gear Ratio for Spreading Performance
The 1:3 step-up ratio is specifically calibrated to convert the tractor PTO's 540 RPM input into the higher rotational speed required by fertilizer spreading discs and agitators. This ratio ensures that spinner discs rotate at the ideal RPM for wide, even distribution of granular fertilizer, lime, seed, and other materials. The precise ratio configuration directly impacts spreading width uniformity, helping operators achieve consistent field coverage and reduce input material waste during every spreading pass.

3. 내식성 알루미늄 구조
Fertilizers, lime, and agrochemicals are chemically aggressive and can cause rapid corrosion of unprotected metal components. The L-25J features a precision die-cast aluminium housing that offers an inherently corrosion-resistant surface, significantly outperforming uncoated steel in fertilizer environments. Combined with high-durability oil seals and sealed bearings, the housing prevents chemical ingress during extended spreading operations, protecting the internal gear train and ensuring the long service life expected from a professional-grade agricultural gearbox for fertilizer spreader duty.

4. Versatile Disc and Agitator Drive Integration
The L-25J is designed for direct integration into centrifugal disc-type fertilizer spreaders, transmitting drive to the main spinning discs that broadcast fertilizer across the field. Its output shaft configuration also supports integration with agitator systems in hopper-type spreaders, where an agitator prevents bridging or blockage of granular materials, maintaining a steady, uninterrupted flow to the spinning disc. This dual-function capability makes the gearbox compatible with a broad range of single-disc and twin-disc spreader designs found across the global market.

5. Wide Range of Agricultural Applications
Beyond its primary fertilizer spreading role, the L-25J's robust construction and standardised PTO interface make it a versatile power transmission component across multiple agricultural machinery categories. It is confirmed suitable for mowers, multi-row rotary tillers, and band saws, and its performance characteristics align well with a broad range of field-mounted, PTO-driven implements. As one of the leading fertilizer spreader gearbox manufacturers, CMN Transmission ensures that each unit undergoes full quality verification before shipment, guaranteeing operational reliability whether used in grain farming, horticulture, turf management, or soil amendment applications.

6. Field-Ready Serviceability and Lubrication Access
Routine maintenance in the field demands accessible service points, and the L-25J delivers with clearly positioned fill, drain, and level check plugs that make oil servicing straightforward without requiring specialised tools or removing the gearbox from the machine. The first oil change is scheduled at 50-70 operating hours, followed by standard intervals of 500-700 hours or annually, using SAE 90EP gear oil. The compact 0.35 L oil capacity minimises lubricant cost while maintaining full lubrication of the internal gear set and bearings throughout extended operational periods.

작동 원리

Power enters the L-25J through the input shaft, which is engineered with a standard 1-3/8 inch 6-spline profile to mate directly with the tractor's 540 RPM PTO driveline. As the tractor engine runs, rotational energy travels through the PTO shaft and driveline coupling into the gearbox input. The input shaft is supported by precision-grade bearings that absorb radial and axial loads generated during operation, ensuring smooth torque transfer with minimal vibration even during field operation over uneven terrain. This direct mechanical connection is the foundation of reliable, loss-free power delivery to the spreading mechanism.

Inside the aluminium housing, the input shaft drives a precision bevel gear set that converts the rotational axis from the PTO's horizontal alignment to the vertical or angular output axis required to drive the fertilizer spreading disc. The 1:3 step-up ratio means that for every revolution of the input shaft, the output shaft rotates three times, increasing the rotational speed to the level required for effective broadcast spreading. The tooth geometry and heat treatment of the bevel gears are designed for smooth, low-noise meshing under the torque loads generated during continuous fertilizer spreading operations. This gear set is the mechanical heart of the fertilizer gearbox and is the primary determinant of spreading speed and distribution width.

The gearbox output shaft, with a 22 mm outside diameter, delivers the converted rotational motion directly to the spreading disc or auger. At a maximum output torque of 30 N·m, the L-25J provides sufficient rotational force to drive standard centrifugal spreading discs even when handling dense, heavy granular materials such as coarse limestone or fertilizer blends. The output connection is secured to the disc hub via the shaft fitting, and the compact shaft geometry allows for integration into the tight mechanical envelope typical of mounted fertilizer spreader designs. This direct, shaft-to-disc drive delivers high mechanical efficiency compared to belt or chain-driven alternatives.

The internal gear set and bearings are lubricated by an oil-bath system using a maximum of 0.35 L of SAE 90EP gear oil. This splash lubrication ensures that all rotating and meshing surfaces receive a continuous film of lubricant during operation, dramatically reducing friction-induced wear and heat generation. The oil also functions as a thermal buffer, absorbing and dissipating heat generated by gear meshing loads. High-quality oil seals at both the input and output shaft locations prevent lubricant leakage and exclude dust, moisture, and fertilizer dust from the gear chamber. First-fill oil is not included; operators must add the correct grade prior to initial commissioning, and the first oil change is scheduled at 50-70 operating hours to flush initial break-in wear particles from the system.

The die-cast aluminium housing provides the structural framework that maintains precise gear alignment under the dynamic loads of field operation. Four M11 bolt holes on a 108 mm x 108 mm mounting pattern allow the gearbox to be securely bolted to the spreader frame, preventing movement or deflection under operating loads. The housing's ribbed external geometry provides additional stiffness without adding unnecessary weight, keeping the total gearbox mass at 4.1 kg. This low weight reduces the overall implement weight and the forces exerted on the tractor's three-point hitch linkage, improving tractor stability during headland turns and transport between fields. The aluminium material's inherent resistance to fertilizer chemical attack further enhances structural longevity in the harsh operating environment of fertilizer spreading.

Applications of the L-25J Fertilizer Distributor Gearbox

설치 단계

1. Safety Preparation and Equipment Check
Before starting any installation work, ensure the tractor is switched off, the PTO is fully disengaged, and the parking brake is applied. Allow all rotating components on the spreader to come to a complete stop before approaching the gearbox mounting area. Gather the required tools including an appropriately rated torque wrench, spanner set, and cleaning rags. Confirm that the replacement L-25J gearbox matches the original Comer L-25J specifications by checking the ratio, shaft sizes, and bolt pattern dimensions against the spreader manufacturer's documentation before proceeding.

2. 기존 변속기를 제거합니다.
Disconnect the PTO driveline shaft from the gearbox input by releasing the quick-release collar or removing the connecting hardware as appropriate for the spreader design. Remove the spreading disc from the output shaft by unfastening the disc retaining bolts or circlip. Drain the old gearbox oil by removing the drain plug and disposing of the used oil according to local environmental regulations. Once the oil is drained and the shaft connections are free, remove the four mounting bolts that secure the gearbox to the spreader frame and carefully extract the old gearbox unit from its mounting location.

3. Clean the Mounting Area and Inspect
With the old gearbox removed, thoroughly clean the spreader's mounting bracket and the surrounding area of any residual oil, fertilizer dust, and corrosion. Inspect the mounting bracket for cracks, deformation, or damaged threads that could compromise the security of the replacement gearbox. Verify that the four mounting bolt holes are clean and undamaged. Check the PTO driveline shaft for wear or damage at the spline section, and replace the driveline coupling or PTO shaft if significant wear is evident, as a worn driveline connection will reduce the service life of the new gearbox input shaft spline.

4. Mount the New L-25J Gearbox
Position the new L-25J gearbox onto the spreader mounting bracket, aligning the four M11 bolt holes with the corresponding holes in the bracket. Insert the mounting bolts and tighten them progressively in a cross pattern to ensure even clamping load and to prevent the housing from distorting as the bolts are torqued. Tighten to the torque value specified in the spreader manufacturer's documentation. Confirm that the gearbox sits flush and secure against the mounting surface with no gaps or movement before proceeding to shaft connection steps.

5. Connect the PTO Driveline Shaft
Slide the PTO driveline shaft coupling onto the L-25J input shaft, ensuring the 1-3/8 inch 6-spline profile fully engages and the quick-release locking collar clicks securely into its retaining groove. Verify that the driveline shaft is at the correct operating angle and that the shaft telescopes within its designed operating range at the working attachment angle. Excessive driveline angles or inadequate telescoping overlap can cause vibration, premature wear, and gearbox damage. Where required, check that the PTO shaft guard is in good condition and correctly fitted over the entire exposed length of the driveline.

6. Fill with SAE 90EP Gear Oil
The L-25J is supplied dry without oil. Before operation, remove the oil fill plug and add clean SAE 90EP gear oil up to the level indicated by the level plug or sight indicator, taking care not to exceed the maximum capacity of 0.35 L. Over-filling can cause excessive internal oil churning, overheating, and oil seal failure. Use only the specified SAE 90EP grade to ensure correct viscosity for the operating speed and temperature range of the gearbox. Reinstall the fill plug securely, wipe the housing clean, and check for any immediate leakage at the fill plug and oil seal locations before proceeding to the initial run-in check.

7. Refit Spreading Disc and Conduct Initial Run Check
Refit the spreading disc to the gearbox output shaft, securing it with the correct retaining hardware to the manufacturer's specified torque. With the spreader positioned safely away from personnel, start the tractor and engage the PTO at low speed to perform an initial run-in check. Observe the gearbox for any unusual noise, vibration, or oil leakage during the first five minutes of operation. Gradually increase to normal operating PTO speed and confirm smooth, consistent disc rotation. After the initial 50-70 operating hours, perform the first oil change to flush any metal particles from the break-in period, then continue with standard 500-hour oil change intervals.

Fertilizer Spreader Gearbox vs. Rotary Tiller Gearbox

비교표:

비료 살포기 기어박스 및 PTO 구동축

Fertilizer spreader gearboxes and PTO driveline shafts are the two primary mechanical components that together form the complete power transmission chain from the tractor engine to the fertilizer spreading disc.

The L-25J fertilizer spreader gearbox receives rotational power from the tractor PTO and performs two critical functions: it changes the direction of the power transmission axis from the PTO's longitudinal alignment to the vertical or angular output axis needed to drive the spreading disc, and it applies the 1:3 step-up ratio to increase rotational speed from the PTO's 540 RPM input to the higher disc speed required for effective broadcast spreading. The gearbox's aluminium housing protects the internal bevel gear set and bearings from the corrosive fertilizer environment while maintaining the precise shaft alignment necessary for efficient, low-loss power transmission. Together, these functions convert the tractor's mechanical power into the specific speed and torque combination that determines spreading performance, application width, and distribution uniformity.

A PTO shaft, also referred to as a Power Take-Off shaft, is the mechanical drivetrain component that transfers rotational power from the tractor's PTO output yoke to the implement's gearbox input. Rather than requiring every piece of farm machinery to carry its own engine, the PTO shaft enables a single tractor to power a wide range of implements including rotary tillers, flail mowers, wood chippers, balers, and fertilizer spreaders. The PTO shaft consists of two universal joints connected by a telescoping tube assembly that accommodates the changes in length and angle that occur as the implement follows ground contours relative to the tractor during field operation. A safety guard surrounding the rotating shaft prevents contact with the spinning components and is a mandatory requirement under agricultural safety legislation in most countries.

The connection between the PTO shaft and the gearbox is made at the L-25J's input spline, where the PTO shaft's female coupling slides onto the gearbox's 1-3/8 inch 6-spline input stub shaft. The quality and condition of this connection directly affects gearbox longevity: a worn, misaligned, or incorrectly rated PTO shaft imposes additional vibration, impact loads, and misalignment forces on the gearbox input bearings and housing, dramatically accelerating wear and reducing service life. For this reason, CMN Transmission recommends always pairing the L-25J gearbox replacement with a thorough inspection of the PTO driveline shaft, and replacing any component showing signs of excessive wear, spline damage, or universal joint looseness to protect the new gearbox investment.

CMN Transmission supplies a comprehensive range of PTO driveline shafts, universal joints, yokes, and torque-limiting devices designed to complement our fertilizer spreader gearboxes. Selecting matched CMN PTO components ensures dimensional and performance compatibility, simplifies sourcing, and provides a complete drivetrain solution with consistent quality standards across every component in the power transmission chain from the tractor to the spreading disc.

Correct Lubrication of the L-25J Fertilizer Gearbox

1. Use the Correct Oil Grade
The L-25J must be filled with SAE 90EP (Extreme Pressure) gear oil, a mineral-based lubricant formulated with extreme pressure additives that protect the bevel gear tooth flanks under the high contact pressures generated during gear meshing. Do not substitute with engine oil, hydraulic oil, or lighter gear oils, as these lack the EP additive package needed to prevent gear scuffing and surface fatigue. Using the wrong fertilizer spreader gearbox oil grade will result in premature gear wear and potential gearbox seizure within a single spreading season. EP 90 gear oil is widely available from agricultural equipment dealers and lubricant suppliers globally.

2. Maintain the Correct Oil Level
Before each spreading season and periodically during intensive use, check the fertilizer spreader gearbox oil level by removing the level plug with the gearbox in its operating orientation. Oil should be visible at or just below the level plug thread. The maximum oil capacity is 0.35 L; do not overfill, as excess oil creates churning resistance, raises operating temperature, and can cause seal failure and leakage. Insufficient oil level leaves gear surfaces and bearings inadequately lubricated, leading to accelerated wear. A simple pre-season oil level check takes less than two minutes and can prevent a costly mid-season gearbox failure.

3. Perform the First Oil Change at 50-70 Hours
A critical and often overlooked step for a new or replacement gearbox is the early first oil change, specified at 50-70 operating hours for the L-25J. During the initial break-in period, the gear tooth surfaces and bearing contact tracks undergo micro-smoothing, generating fine metallic wear particles that become suspended in the oil. These particles act as an abrasive if left in the system. Draining and replacing the oil at 50-70 hours removes these particles before they can cause accelerated wear on the hardened gear and bearing surfaces. This early oil change is strongly recommended and will significantly extend the service life of the replacement gearbox.

4. Follow the 500-Hour Change Interval
After the initial early oil change, subsequent oil changes are scheduled at 500-700 operating hours, or at minimum once per year, whichever occurs first. In seasonal agricultural operations, an annual oil change at the end of the spreading season ensures that degraded oil containing moisture contamination and wear particles is replaced with fresh lubricant before the gearbox is stored for the off-season. Oil that has been thermally cycled through repeated heating and cooling absorbs moisture from condensation, which dilutes the EP additive package and promotes internal corrosion of the gear and bearing surfaces. Consistent adherence to the oil change schedule is the single most important maintenance action for maximising gearbox service life.

5. Check Seals and Inspect for Leakage
During every oil level check or oil change, visually inspect the gearbox housing, input and output shaft oil seals, and plug threads for any signs of oil leakage. Even minor oil seepage indicates a deteriorating seal or a loose plug, both of which will lead to accelerating oil loss and lubricant starvation if not addressed promptly. In fertilizer spreading applications, fertilizer dust can accumulate around oil seal lips and accelerate seal wear if not periodically cleaned away. Wipe the housing and seal areas clean with a dry cloth before inspecting for seepage, so that fresh leakage can be clearly identified against a clean surface.

6. Post-Season Storage and Lubrication Preparation
At the end of each spreading season, before placing the spreader in storage, drain the used gear oil from the L-25J and refill with fresh SAE 90EP to the correct level. This practice prevents moisture-contaminated oil from remaining in contact with the gear surfaces during the storage period, during which condensation and temperature cycling can cause significant internal corrosion. Clean the exterior of the gearbox housing with a dry brush or cloth to remove fertilizer crust deposits that retain moisture against the housing surface. Store the spreader in a dry, covered location if possible. At the start of the next season, recheck the oil level and the condition of all seals before recommissioning the spreader for field operation.

CMN 트랜스미션의 비료 살포기용 기어박스를 선택해야 하는 이유는 무엇일까요?

Korea CMN Transmission Co., Ltd. was established in 2000 and is located in Sandan-o, Danwon-gu, Ansan-si, Gyeonggi-do, Korea. With over 100 dedicated factory employees, CMN Transmission operates as a vertically integrated manufacturer focused on the research and development, manufacturing, quality assurance, sales, and after-sales service of agricultural gearboxes for the global market. Over more than two decades of continuous operation, CMN Transmission has grown into a recognised and trusted supplier within the global agricultural gearbox industry, building its reputation on consistent product quality, technical accuracy, and reliable international delivery performance.

Our comprehensive product range covers the full spectrum of agricultural power transmission requirements, including rotary cutter gearboxes, rotary tiller gearboxes, feed mixer gearboxes, rotary mower gearboxes, fertilizer spreader gearboxes, flail mower gearboxes, post hole digger gearboxes, round baler gearboxes, square baler gearboxes, disc mower gearboxes, centre pivot irrigation gearboxes, hydraulic drive gearboxes, silage machine gearboxes, orchard sprayer gearboxes, rotary rake gearboxes, combine harvester gearboxes, grain storage gearboxes, grain transportation gearboxes, corn header gearboxes, cutting bar gearboxes, and poultry feeding gearboxes. Our custom agricultural gearbox capability covers nearly one thousand specifications, and we support custom production based on customer drawings and samples to meet specific OEM and application requirements.

Beyond gearboxes, our product range extends to PTO shafts, universal joints, yokes, telescoping tubes, torque limiters, safety covers, shaft adapters, flexible couplings, bearings, tiller blades, drive chains, and sprockets - enabling CMN to serve as a one-stop agricultural drivetrain component supplier for OEM manufacturers and international distributors. With an annual production volume exceeding 500,000 units, we have the manufacturing scale and operational consistency to fulfil large-volume OEM orders alongside standard aftermarket supply requirements.

All CMN products are manufactured and quality-controlled under CE and ISO 9001 certified management systems, ensuring that every gearbox leaving our factory meets the dimensional, material, and performance specifications required by our global customer base. Our fertilizer spreader gearboxes are exported to and trusted by agricultural professionals in the United States, Canada, Mexico, Brazil, Argentina, France, Germany, Italy, Spain, the United Kingdom, Russia, India, Thailand, Vietnam, Turkey, Australia, New Zealand, and more than 60 additional destination countries worldwide. This global reach reflects our ability to provide consistent technical solutions for agricultural machinery partners operating across diverse farming environments, climatic conditions, and crop production systems.

자주 묻는 질문

Q: Is the CMN L-25J a direct drop-in replacement for the Comer L-25J gearbox?
A: Yes. The CMN L-25J has been engineered as a direct replacement for the Comer L-25J fertilizer spreader gearbox. It matches the original Comer specifications including the 1:3 gear ratio, 1-3/8 inch 6-spline (Z6) input shaft, 22 mm output shaft diameter, 4-bolt mounting pattern on 108 mm x 108 mm centres, and the same aluminium housing weight of 4.1 kg. No frame modification, adapter plates, or driveline changes are required for a standard like-for-like replacement on spreaders originally designed for the Comer L-25J.

Q: What oil should I use in the L-25J fertilizer spreader gearbox?
A: The L-25J requires SAE 90EP (Extreme Pressure) gear oil. This is a mineral-based lubricant containing extreme pressure additives that protect the bevel gear tooth flanks under high contact loads. The correct fertilizer spreader gearbox oil grade is widely available from agricultural equipment dealers and lubricant suppliers. The maximum fill capacity is 0.35 L. Do not use engine oil, hydraulic oil, or gear oils without the EP additive classification, as these will not provide adequate protection for the hardened bevel gear surfaces and will lead to accelerated wear.

Q: What does the 1:3 fertilizer spreader gearbox ratio mean for spreading performance?
A: The fertilizer spreader gearbox ratio of 1:3 means that for every one revolution of the input shaft (driven by the tractor PTO at 540 RPM), the output shaft rotates three times (at 1,620 RPM). This step-up in rotational speed is essential for centrifugal disc-type fertilizer spreaders, where the disc must rotate at high speed to broadcast granular fertilizer over a wide spread width. A higher disc speed generally produces a wider, more uniform spreading pattern. The 1:3 ratio of the L-25J is calibrated for standard 540 RPM PTO operation and is the most common ratio for light to medium centrifugal fertilizer spreader applications.

Q: How often should I change the oil in my fertilizer spreader gearbox?
A: For the L-25J, the oil change schedule is: first oil change at 50-70 operating hours (to flush break-in wear particles), then every 500-700 operating hours or at least once per year, whichever comes first. For seasonal agricultural operations, we recommend an annual oil change at the end of each spreading season, before the spreader goes into storage. This removes moisture-contaminated oil and prevents internal corrosion during the off-season. Checking the fertilizer spreader gearbox oil level before each spreading season and periodically during intensive use takes only a few minutes and is essential preventive maintenance.

Q: Can the L-25J be used at 1000 RPM PTO speed?
A: The L-25J is rated for a maximum input rotation speed of 540 r/min, which corresponds to the standard 540 RPM PTO speed used on most agricultural tractors for this class of implement. Operating the gearbox at 1000 RPM PTO speed would significantly exceed the rated maximum input speed and is not recommended, as this would increase the output shaft speed to approximately 3,000 RPM - far beyond the design limits of the gearbox and the connected spreading disc. If your application requires operation at a different PTO speed or output speed, please contact CMN Transmission's technical team to discuss the appropriate gearbox model and specification for your requirements.

Q: Does the L-25J come with oil already filled?
A: No. All L-25J gearboxes are supplied without oil (dry). Before initial operation, the gearbox must be filled with the correct grade of SAE 90EP gear oil to the specified level (maximum 0.35 L). Operating the gearbox without oil will cause immediate and irreversible damage to the bevel gears and bearings within minutes of running. Always verify the oil has been correctly filled to the level plug before engaging the PTO for the first time. CMN Transmission recommends using a clean funnel and filling slowly to avoid overfilling.

Q: What spreader brands is the L-25J compatible with besides Comer?
A: The CMN L-25J is a direct replacement for the Comer L-25J gearbox, and as such it is compatible with any fertilizer spreader originally designed around the Comer L-25J specifications. A wide range of European and global spreader manufacturers have used the Comer L-25J as an original equipment gearbox in their centrifugal disc spreader models, including various Vicon, Amazone, Kuhn, Sulky, and Bogballe models that use this gearbox family. To confirm compatibility with your specific spreader model and year, check the original spreader's parts manual or gearbox identification plate for the Comer model reference. Contact our technical team if you need confirmation for your specific spreader make and model.

Q: What is the maximum power the L-25J can transmit?
A: The L-25J is rated for a maximum input power of 5 kW (approximately 7 HP) at the standard 540 RPM PTO input speed, with a maximum output torque of 30 N·m. These ratings apply under continuous steady-state operating conditions at the specified oil fill level and with the correct SAE 90EP lubricant. Exceeding these power ratings will cause accelerated gear and bearing wear, potential oil seal failure from elevated operating temperatures, and in extreme cases, gear tooth or shaft failure. If your application requires higher power transmission than these ratings, contact CMN Transmission for information on alternative gearbox models from our range that are rated for higher power inputs.

질문: 비료 살포기의 기어박스를 교체해야 하는지 어떻게 알 수 있나요?
A: 비료 살포기 기어박스 교체 또는 정비가 필요한 일반적인 징후는 다음과 같습니다. 작동 중 비정상적인 갈리는 소리, 딸깍거리는 소리 또는 윙윙거리는 소음 발생; 살포기 프레임을 통해 전달되는 과도한 진동; 축 씰 또는 하우징 연결부에서 오일 누출; 작동 중 디스크 회전 속도 감소 또는 불규칙성; 입력 또는 출력 축의 심한 유격 또는 헐거움; 또는 부하 시 디스크가 갑자기 멈추는 현상. 오일 부족 상태로 작동된 누출 기어박스는 일반적으로 오일을 배출했을 때 금속 입자 오염이 나타나며, 이는 심각한 내부 마모를 나타냅니다. 내부 손상이 의심되는 경우, 이러한 유형의 소형 알루미늄 농업용 기어박스의 경우 부분적인 내부 수리를 시도하는 것보다 기어박스 전체를 교체하는 것이 비용 효율적입니다.

질문: CMN L-25J는 어떤 품질 인증을 보유하고 있습니까?
A: CMN Transmission은 ISO 9001 인증 품질 관리 시스템 하에서 L-25J 비료 살포기 기어박스를 제조하여 모든 생산 배치에서 일관된 치수 정확도, 재료 사양 준수 및 기능 성능 테스트를 보장합니다. 또한 당사 제품은 유럽 기계 안전 요구 사항을 충족함을 확인하는 CE 인증을 획득했습니다. 이러한 인증은 제품 적합성 증빙 서류를 요구하는 유럽 및 기타 규제 시장의 수입업체와 유통업체에게 필수적입니다. 공급업체 자격 증빙 서류가 필요한 OEM 및 거래 고객은 요청 시 당사의 최신 ISO 9001 인증서 및 CE 적합성 선언서 사본을 받아보실 수 있습니다.

고객 리뷰

알레한드로 마르티네스, 농작물 재배, 아르헨티나
"저희는 팜파스 지역에서 약 1,200헥타르의 밀과 옥수수를 재배하고 있으며, 여러 대의 원심식 비료 살포기를 사용하여 비료를 살포하고 있습니다. 시즌 중간에 마모된 기어박스 세 개를 CMN L-25J로 교체했는데, 솔직히 설치가 얼마나 간단했는지 믿을 수 없었습니다. 부에노스아이레스에 양호한 상태로 도착했고, 스플라인은 기존 드라이브 샤프트와 동일해서 한 시간 안에 세 개 모두 가동시킬 수 있었습니다. 지침대로 60시간 후에 첫 오일 교환을 했는데, 내부가 깨끗했고 금속 입자도 전혀 없었습니다. 가격 대비 품질에 매우 만족합니다."

트래비스 베이커, 곡물 농업, 미국
"저희 Vicon 살포기에 사용하던 기존 Comer 기어박스가 두 번째 시즌부터 심하게 누유되기 시작해서 CMN에서 L-25J 기어박스 두 개를 주문했습니다. CMN에서 주문한 교체품은 약 10일 만에 텍사스에 도착했고, 포장도 꼼꼼했습니다. 볼트 패턴과 스플라인 결합 부분이 완벽하게 일치해서 아무런 개조 없이 바로 교체할 수 있었습니다. 콩밭에서 한 시즌 동안 사용해 봤는데 아무 문제 없이 잘 작동하고 있습니다. 알루미늄 하우징은 오클라호마의 여름 더위에도 잘 견딜 것 같습니다. 앞으로도 CMN에서 계속 주문할 생각입니다."

로버트 앤더슨, 혼합 농업, 캐나다
"온타리오에 있는 저희 농장에서 사용하는 살포기에 쓸 기어박스를 한국에서 주문하는 게 조금 망설여졌지만, 순정 코머 부품에 비해 가격이 너무 저렴해서 그냥 지나칠 수 없었습니다. 주문하고 나니 12일 정도 만에 통관 문제 없이 도착했습니다. 봄철 요소비료 살포용으로 사용하는 600리터 장착형 살포기에 장착했는데, 기어비도 정확하고 소음도 적습니다. 처음 65시간 사용 후 오일 교환을 했는데, 기존 오일에서 이상한 점은 발견되지 않았습니다. 몇 주 전에 오일량을 다시 확인해 보니 지금도 적정 수준을 유지하고 있습니다. 1년에 기어박스를 한두 개씩 교체하는 농장에서 쓰기에 아주 좋은 가성비 제품입니다."

기욤 뒤부아, 프랑스 농업협동조합
"저희 페이 드 라 루아르 협동조합을 대표하여, 조합원 농가의 노후된 코머(Comer) 순정 기어박스를 교체하기 위해 CMN에서 L-25J 기어박스 6개를 구매했습니다. 사전 상담은 신속하고 전문적이었으며, 주문 확정 전에 사양이 저희 살포기 모델과 일치하는지 확인해 주셨습니다. 프랑스까지 해상 운송으로 약 14일이 소요되었고, 6개 모두 완벽한 상태로 도착했습니다. 한 시즌 동안 석회 살포 작업을 진행한 후에도 6개 모두 오일 누출 없이 정상적으로 작동하고 있습니다. 오일 등급에 대한 문의 사항이 있었을 때도 사후 관리 담당자와의 소통이 원활했습니다. 강력 추천합니다."

클라우스 바그너, 경작 농업, 독일
"제품이 완벽하게 맞습니다. 저희 원심 살포기에 장착된 기존 코머(Comer) 기어박스를 교체하기 위해 CMN L-25J 기어박스를 주문했습니다. 바이에른까지 배송은 해외 배송치고는 16일 정도 걸렸는데, 충분히 만족스러운 속도였습니다. 조립도 문제없이 진행되었고, 스플라인 연결부도 정확하게 맞아떨어졌습니다. 기어박스는 두 번의 살포 기간 동안 조용하게 잘 작동했습니다. 가격 대비 성능이 매우 훌륭합니다. 다음에 부품이 마모되면 다시 여기서 주문할 생각입니다. 기술적인 질문에 신속하게 답변해 주신 고객 서비스팀에도 감사드립니다."

네이선 캠벨, 잔디 관리, 호주
"저는 빅토리아 주에 있는 세 곳의 골프장과 스포츠 경기장 유지 관리 사업을 운영하고 있으며, 잔디 비료 살포를 위해 소형 트랙터에 장착된 살포기를 사용합니다. 저희 살포기 중 한 대의 원래 기어박스가 고장 나서 교체하려고 했는데, Comer에서 구입한 교체품 가격이 CMN 제품 가격의 거의 두 배나 됐습니다. 멜버른까지 배송은 약 2주 정도 걸렸고, 기어박스는 설명대로 정확했습니다. 살포기에 장착하니 완벽하게 작동하고 디스크 회전 속도도 적당합니다. 두 달 동안 문제없이 꾸준히 살포 작업을 했습니다. 예비용으로 하나 더 주문할 예정입니다."

파비오 히베이루, 커피 농업, 브라질
"미나스제라이스 내륙에 있는 저희 커피 농장에 사용할 L-25J 기어박스 두 개를 주문했습니다. 제품은 약 18일 만에 상파울루에 양호한 상태로 배송되었습니다. 설치는 간단했고, 저희 800리터 비료 살포기에 완벽하게 맞았습니다. 커피 비료 살포 시즌 내내 사용해 봤는데 기어박스는 아무 문제 없이 잘 작동하고 있습니다. 사전 판매 서비스도 친절했고, 저희의 기술적인 질문에 신속하게 답변해 주었습니다. 배송 시간이 조금 더 빨랐으면 좋았을 것 같아서 별 하나를 뺐지만, 제품 자체는 매우 훌륭합니다."

마르코 비앙키, 채소 재배, 이탈리아
"저는 포 계곡에서 대규모 채소 재배 농장을 운영하고 있는데, 강도 높은 비료 살포 작업 때문에 매년 여러 개의 살포기 기어박스를 교체해야 합니다. 온라인 검색을 통해 CMN을 알게 되었고, 기존에 사용하던 이탈리아 OEM 부품과 비교해 보기 위해 L-25J 모델 세 개를 시험 구매했습니다. 에밀리아로마냐까지 택배로 약 2주 정도 걸렸습니다. 스플라인 결합도 정확했고, 장착 패턴도 일치했으며, 작동 소음도 OEM 제품과 비슷했습니다. 노지 채소 재배지에서 3개월 동안 집중적으로 사용해 본 결과, 세 개 모두 누유나 문제 없이 잘 작동하고 있습니다. 앞으로 저희 농장의 모든 부품은 CMN 제품으로 교체할 예정입니다."

수레시 파텔, 인도 농기계 부품 유통업체
"저희는 마디아프라데시 지역 전역의 농가에 농기계 부품을 공급하고 있으며, 고객들을 위해 고가의 유럽 OEM 부품 대신 CMN 기어박스를 대안으로 테스트해 왔습니다. 평가를 위해 L-25J 유닛 5개를 주문했습니다. 도착한 제품의 품질은 양호했습니다. 주조 상태가 깨끗하고 표면 결함이 없었으며 오일 플러그도 단단히 조여져 있었습니다. 첫 번째 시험에서 고객의 살포기에 두 대를 장착했는데, 두 대 모두 여러 차례 비료 살포 작업을 거치는 동안 문제없이 작동했습니다. 가격 면에서도 신뢰할 수 있는 교체 부품이 필요한 인도 농부들에게 현실적인 선택지가 될 것입니다. 이에 따라 더 많은 양을 추가로 주문했습니다."